Amalgam mixer



F. D. LEIPOLD.

AMALGAM MIXER. APPLICATION FILED IAN. I2, 1922.

L421 ,016; Patented June 27, 1922.

narra sra-irse ya citizen of the United States, residing saire-nir oFRANK D. LEIPOLD, OF CLEARFIELD, PENNSYLVANIA. I

MALGAM MIXER.

restore.

Specification of Letters Patent. Patented June 27, 1922.

Application filed January 12, 1922. Serial No. 523,713. l

ToaZZ whom t may concern:

B it `known that I, FRANK D. LEIPOLD, at Clearfield, in the county ofClearfield and State of Pennsylvania, have invented certain new anduseful Improvements in Amalgam Mixers, of which the following' is aspecification.

lThis invention relates to certain new and useful improvements in'amalgam mixers, and the primary object of the invention is to provide adevice of this type which can be easily and quickly attached to a dentalen-v A gine so' as to be operated thereby and which is formed so as tolbe held in and steadied by the hand of the dentist during the operationof mixing.

A further object `ofthe invention is to provide a device of this kindwhich is equipped with a sleeve or chuck that can be easily and quicklyapplied to the exible driving shaft of the engine and removed therefromso as tothus enable the mixing to be effected expeditiously.

The invention stillfurther aims to provide a'mixer which is'positive andcertain in y action and which is composedbial minimum l moval thereof.

0f parts of simple .an'd economical constructions that are compactlyrelated so as to provide convenient storage when out of use.

The invention also aims to provide. a glass receptacle and means forsealing the inlet thereof during the mixing. operation and to alsoprovide ,a holder fory the receptacle which will positively and firmlysupport the lattery and still permit of ready represent invention aysleeve or chuck l is ernployed and which 'is preferably knurled orsuitably roughened to afford a firm nger grip. The chuck has its innerend formed With slotted parts 2 and 3 for engagement with dental enginesof varying types, some of which types fit part 2 and others part 3, thechuck being thus adapted for use with either type. A driving shaft 4 issuitably mounted in the chuck and is received by the usual chuck of theflexible shaft of the dental engine so as to be driven by the latter.

arm 5 is rigidly secured at one end to the'v chuck 1 and has an upwardlyextending vthumb piece 6 on its opposite outer end. The shaft extendsthrough the arm 5 and has a crank 7 rigidly secured thereto. Arranged infront of the thumb piece 6 is an upwardly extending post 8 to which alink` 9 is pivoted by means of a screw 10. The link 9 is slotted at 11at itsouter end and slidably receives the crank pin of the crank 7, thelatter having a screw`12 vsecured thereto so as to prevent movement ofthelink from the crank pin.

The outer end of the link is formed with lateral arms affording asuitable support 13 for a receptacle-holder 14, the latter having ends15 and 16, the ends being provided with circular rims 17 and 18respectively. A suitable sealing'element such as cork, or rubber 19, orthe like is frictionally or otherwise secured in therim 17, while afollower disk 20 tensioned by a coil spring 2lis lslidable in the rim18. The holder 14 is open or cutaway along its sides and top, to enablea preferably glass receptacle 22 to be placed in and removed from theholder with its open end abutting and sealed by the element 19, whileits closed end is engaged by the follower disk 20, which latter not onlyholds the receptacle in the holder but also exerts Constant tensionthereon to maintain lthe open end thereof in sealing 'engagement withthe sealing element 19.

By merely grasping the receptacle in the fingers, same may be movedagainst the tension of the follower'disk to bring the open end free ofengagement `with the rim 17 whereupon the receptacle may be disengagedfrom the holder. In order to place the relies,

receptacle inthe holder, the closed end is impinged against the disk 20and moved to force the disk inwardly against its spring until the openend of the receptacle is in register with the rim 17, whereupon releaseof the receptacle allows the tensioned disk to move the receptacle tothe position of Figure 3.

In operation, the sleeve or chuck 1 is first moved or slid intoengagement with the usual -chuck of the dental engine flexible haft,causing automatic. coupling oil the holder.

driving shaft l. The thumb of the hand is engaged with grip Sandthe'tngeis engaged with the chuck to thus hold and steady the device inthe `hand of the operator. vPower being applied, shaft -l is lro.-

tated and therewith crank T which effects.

oscillation of the holder x1l.` and therewith the amalgam. Thereceptacle is made of sufficient length so that the amalgam will beimpacted with quite a little force both against the closed end of thereceptacle and against the seal 19 to thus etlicientlvv imite themercury and allov.V It will further be seen that the receptacle hasoscillatorv movement in a curved line thus simulating shaking of theamalgam in a bottle held inthe hand of the dentist. The receptacle'being formed of glass the'amalgam is visible to allow the dentist 'toobserve the mixing/and to ,determine when same `is completed, withoutremoving the receptacle from 'the holder. In Figure 5, a` modified formis illustrated;

and whereiny an arm-30 is employed secured to chuck l, the latter beingidentical with the forni vin Figures 17 to l. The arm has a dependingthumb grip 31 and is slotted at 32 to slidablyreceive a pivotal member33, the latter being" secured to a holder '3l which latter Ialso isidenticallwith the form of the invent-ion illustrated in Figures 1 to -LL A crank 35 is secured to the shaft of the chuckand is pivoted bymember 3T to the a dental engine, an arm on the shaft ha-ving a thumbmember to allow the device to be held by engaging the thumb with said'member and the fingers with said chuck, a holder, an amalgam receptaclecarried by holder, means to pivot the holder to the arm,

and means carried bythe shaft to" oscillatei Y Y ceptacle' carried bythe holder, and means the. holder.

2. In'an amalgam mixer, a chuck formed for operative connection .withthe driving lshaft of a dental engine and having driving meansassociated therewith. a holder, a receptacle removably carried'bv theholder, a member carried by the chuck and having a A hand engaging partto 'allow the device to be held by engaging the hand with said part, i

and with the chuck, and vmean-s actuated bv said driving means foreffecting agitation o the holder.

the

3. In an'amalgain mixer, a chuck formed for operative connection 'withthe driving shaft of a` dental engine, a supporting membei' carried bythechuck, a holder having a I bottom and open sigles and top and havingends formed with rims which extend inwardly of the holder. a springpressed follower in. one of the holder ends, a sealing element in theother holder end, a receptacle .having a closed and an open end thelatter engageable with the sealing element and the closed end beine'engaged .by the follower, and meansto agitate the holder.

an lopen side, and ends. a sealing element associated with one end, aspiingpressed .follower associated` with vthe other end,J a receptaclemovable through the open side and havinga closed end engageable with thefollower andan open end engaged with the sealing element, and agitatingmeans for the porting member, a receptacle in the holder,

and means to agitate the holder( 6.- In an amalgam mixer, a hand`engaging member, a supporting member carried b v the hand engagingmember. and having a finger engaging member soas to allow the device tobe held by engaging the hand with each of said members, a holderon thesup-iA porting membenla receptacle in the holder,

and means carried by the hand engaging EInvan amalgam mixer, a sleeveformed for connection with the driving shaft of a dental engine andhaving drivingmeans engaging member, a' crank carried by Said drivingmeans, a link pivoted to the arm and having a slot receiving one end ofth`e crank, a holder secured to the link, and a.. .receptacle carried bv the holder.

8. In an amalgam mixer, a hand engagiii-g member, an arm carried by saidmember `and having anoutwardlv extending thumb grip, a holder supportedb v the arm, a reto agitate the holder. r

,9.,In` an amalgam) mixer,`a hand engaging member', driving meanstherein. an arm on, the member having al thumb-engaging partl areceptacle holder on the arm.. and means actuated vby the driving meansto imtherein, an arm on the sleeve having a thumb Y, l. In an amalgammixer, a holder Yhaving 'member and connected to the holder for agi-.tatinv the latter.

part an agitatin .movement to the holder.

lOigIn an ama gambmixer. a hollow device formedfor holding inthe hand,driv-r ing means disposedwithin said device, ,a receptacle holdercarried by the device,` and means actuated by the d'riving means toimpart an agitating movement to the holder.

11. In an amalgam mixen-a holder havin a sealing means and a springpressed foIlower, a receptacle closed at one end and engaged by thefollower and'v having its opposite end open and engaged with the sealingmeans, said holder having a part on which a side of the receptacle restsand being formed tov allow the receptacle to be moved outwardly from.said part and removed from the holder, and agitating means v for theholder.

12. In an amalgam mixer. a holder having sealing means and a springpressed follower located in opposed and spaced rela- -t-ion' `to thesealing'rneans, a receptacle havlng one end engaged by the ffollowerandha its opposite end open and engaged witht e sealing means to be sealedthereby,

said holder being formed to allow the receptacle to be removed by beingmoved outwardly therefrom and from between the follower and sealingmeans, and means to agitate thed holder.

13. In an amalgam mixer, a hollow handle, driving means therein, amember sup- FRANK D. LEIPOLD.

